Mayor Bloomberg’s Office of Long-Term Planning and Sustainability has long been toiling away at its benchmark report on the city’s building energy use, and now the results are finally in. After analyzing over 1.8 billion square feet of properties, the mayor and officials have found that the biggest opportunities to increase energy efficiency and reduce greenhouse gas emissions will be found in the city’s biggest buildings (which actually makes a lot of sense). As part of the mayor’s Greener, Greater Buildings Plan, more of the city’s largest buildings will soon follow in the steps of the Empire State, the World Trade Center, and the Hearst Tower to become eco-friendly and energy-efficient beacons in the city.